Minerals known to be required in large amounts for
plant growth include
(a) potassium, phosphorus, selenium, boron
(b) magnesium, sulphur, iron, zinc
(c) phosphorus, potassium, sulphur, calcium
(d) calcium, magnesium, manganese, copper.

1 Answer

Answer :

(c) phosphorus, potassium, sulphur, calcium

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